Customcleanurl main idea is to convert the moodle url in more user readable format and SEO friendly url. Also provide custom url define for existing moodle url and 404 page template. It also provide the old url redirect to new/next url.

1. Course View Page URL your_domain/course/view.php?id=ID => your_domain/course/course_shot_name
2. Course Category Page URL your_domain/course/index.php?categoryid=ID => your_domain/course/category/ID/category_name
3. Course Edit Page URL your_domain/course/edit.php?id=ID => your_domain/course/edit/course_shot_name
4. User Profile URL your_domain/user/profile.php?id=ID => your_domain/user/profile/username
5. Other as defined like: 
   • your_domain/mod/page/view.php?id=11 => your_domain/about-us

Modify .htaccess file

Plugin require modifcation of the .htaccess file for redirect, For this we need to add the following rules:

RewriteEngine On
RewriteBase /
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule ^(.*)$ /local/customcleanurl/route.php [L]
ErrorDocument 403 /local/customcleanurl/404.php
ErrorDocument 404 /local/customcleanurl/404.php